The latest update from Rua Gold centers on the Auld Creek asset in the historic Reefton Goldfield on New Zealand’s South Island. On May 5, 2026 the company published a positive Preliminary Economic Assessment (PEA) with base-case after-tax NPV5% of US$42 million and an after-tax IRR of 17%, assumptions that reflect long-term metal prices. Two weeks earlier, on April 20, 2026, Rua Gold submitted a Fast-Track Referral under New Zealand’s one-stop-shop approvals system, a move intended to speed regulatory progress. The company also reported approximately C$38 million in cash following an oversubscribed January 2026 financing and has a 19,000-metre drill program active with six rigs.
The PEA models a starter underground mine with a nominal throughput of 250,000 tonnes per annum, targeting average annual production of roughly 26,665 ounces gold-equivalent over an initial 5.5-year mine life, and total life-of-mine output near 146,660 ounces AuEq. Using a spot gold price scenario of US$4,700/oz, the study shows a materially higher outcome: after-tax NPV5% of US$113 million and an after-tax IRR of 36%, compressing payback to about 2.2 years. Pre-production capital is estimated at US$132.6 million, including a US$29.8 million contingency, with sustaining capital of US$63.9 million across the life of mine.
Resource, metallurgy and mine plan
The Auld Creek mineral inventory, effective February 27, 2026, reports approximately 204,000 ounces gold-equivalent across indicated and inferred categories, comprised of 0.3 Mt Indicated at 5.67 g/t AuEq (54,000 oz) and 1.3 Mt Inferred at 3.66 g/t AuEq (150,000 oz) at a 1.6 g/t AuEq cutoff. The gold-equivalent (AuEq) calculation applies Au g/t + 2.15 × Sb%, a conversion factor derived from the PEA price assumptions of US$3,300/oz Au and US$27,000/t Sb and metallurgical recoveries of 95% for gold and 85% for antimony. The plan targets overhand cut-and-fill underground mining accessed by a decline ramp, keeping the surface footprint on Crown land under one hectare.
Processing and environmental approach
The proposed processing flowsheet is a conventional grind followed by rougher and multi-stage cleaner flotation to produce separate gold and antimony concentrates, notably with no cyanide in the circuit. The study contemplates selective underground methods such as drift-and-fill or shotcrete support in wider zones and will evaluate sublevel open stoping in later phases. Operational design aims to limit surface disturbance while enabling staged access to higher-grade zones, and the project is expected to employ about 200 people and contribute an estimated NZ$240 million to the regional economy.
Permitting, timeline and drilling campaign
Rua Gold filed its Fast-Track Referral on April 20, 2026, anticipating a decision within three months and aiming to leverage New Zealand’s accelerated approvals pathway. The government-introduced one-stop-shop framework has precedent for rapid progress: a neighbouring Fast-Track project moved from referral to construction in 112 days, offering a concrete timetable benchmark. Rua Gold has targeted completion of a Pre-Feasibility Study (PFS) in Q4 2026 and expects the project could be fully permitted under the Fast-Track framework by Q2 2027, conditional on regulatory outcomes and further study results.
Exploration program and district upside
The ongoing 19,000-metre program at Reefton uses six rigs focused on infill conversion, expansion at depth and step-out holes to the north—work intended to upgrade Inferred tonnes to Indicated and establish Measured resources ahead of the PFS. Rua Gold is also advancing the Glamorgan district on the North Island with a planned 5,000-metre drill program in Q2 2026, reflecting a two-pronged growth strategy. The company controls over 120,000 hectares in the Reefton district, an area with historical production and multiple targets that could extend mine life or scale throughput if exploration succeeds.
Comparables, market positioning and next steps
Rua Gold’s stage of development sits alongside a spectrum of peers that have recently been repriced by bullish gold markets. Public comparables include multi-asset developers and emerging producers that illustrate potential value uplift when studies advance and permitting is streamlined. Short-term catalysts include the scheduled NI 43-101 technical report filing within 45 days of the PEA release, results from the active drill program, the outcome of the Fast-Track Referral, and delivery of the targeted PFS in Q4 2026. For investors seeking exposure to a near-term development pathway in a Fast-Track jurisdiction, Rua Gold presents a concentrated, dual-metal story with clear milestones through 2026 and into 2027.
